To start with, according to Hindu mythology, it is believed that once there was the demon Tripurasura. He was so powerful that he had conquered the whole world and defeated the God Indra, leader of the Gods. Demon Tripurasura then created three cities in space, together called "Tripura”.

God Indra along with other Gods requested that Lord Shiva. Lord ShivaShivaShiva is one of the Supreme Gods of Hindu Trinity that ... incarnated in his form as Tripurantaka ("Killer of Tripurasura") killed the demon Tripurasura on this day. The killing of the demon and destruction of his city with a single arrow by Lord Shiva rejuvenated Gods. They started making celebrations and declared the day as a festival of illuminations. Since that this day is also called "Dev-Diwali" - the Diwali of the gods.

Kartik Purnima is an important day for the Jains as well. The doors of the temple of Lord Adinath open after a period of four months. Thousands of Jain pilgrims visit to the foothills of the Shatrunjay hills of Palitana on this day to undertake the auspicious journey of 216 kms. to reach the temple of Adinath.

One can witness the celebration of three different faiths on a single day of Kartk Purnima with great divinity and enthusiasm.